THE FEATHEK-WIX(iED BEETLES. 



489 



ff. Elytra with the sides nearly straight : thorax widest before the 

 base; color fuscous black; length .9 mm. sebicaks. 

 (7(7. Hind angles of thorax not acute or produced. 939. mcerexs. 



938 ( 2966 ). Trichopteryx haldemaxxi Lee. List of Col. of N. Am., 1863, 29. 

 Elongate-oblong, convex. Color given in key: surface sparsely clothed 



with short, pale hairs: antennae and legs reddish-yellow. Thorax more 

 than twice as wide as long, widest before the base ; sides strongly rounded, 

 hind angles broad, acute and much prolonged ; surface covered with small, 

 rather remote granules arranged in transverse rows. Elytra as long as 

 but narrower than head and thorax, rather closely and irregularly asperate 

 or roughened with small granules. Length 1-1.2 mm. 



Kosciusko. Marion and Putnam counties: frequent. April 17- 

 Oetober 17. Taken by sifting leaves and sphagnum moss in damp 

 places. 



939 (29T2). Trichopteryx mcerexs Matthews. Cist. Ent.. 11. 1874, 298. 

 Oblong, convex. Black, strongly shining: sparsely clothed with pale 



hair : antenna? and legs yellow. Thorax twice as wide as long, widest near 

 the middle, sides moderately rounded, hind angles rectangular : surface 

 smooth, polished. Elytra about as long and wide as head and thorax, 

 very faintly and transversely granulate or asperate : tips broad, the ex- 

 treme edge yellowish. Length .6—. 7 mm. 



Steuben and Putnam counties: scarce. May 25-October IT. 

 Taken by sifting damp debris. Differs from the preceding by its 

 smaller size, smoother surface and form of hind angles of thorax. 



The range of the other species of THchopieryx mentioned in the 

 key is given by Matthews as * ' United States. ' ' 



V. Smicrus Matthews. 1872. (Gr.. "small.") 



Elongate-oblong species, having the antennae long and slender, 

 reaching nearly to middle of elytra. 11-jointed. the last three joints 

 forming an elongate, bead-like club ; head large and broad ; hind 

 coxa? rather distant and with w ide plates. One species is known. 



940 (2909). Smicrus filicorxis Eairm.. Faun. France, I. 1854, 33S. 

 Oblong, subparallel. Black, sparsely clothed with short yellow hairs : 



antenna? and tips of elytra pale : legs yellow. Thorax short, quadrate, 

 widest in front, feebly narrowed toward the base, hind angles acute: disk 

 closely covered with minute tubercles. Elytra as long and nearly as wide 

 as head and thorax, closely and minutely punctate : tips squarely truncate, 

 leaving one-third of abdomen exposed. Length t.2 mm. 



Marion County: rare. October 31. Taken by sifting. 



Nephanes la viusculus Matth., short, broad, convex, dark chest- 

 nut-brown, legs yellow, length .6 mm., may occur in southern 

 Indiana. 



